location aware routing for data aggregation in sensor networks1
MULTI - SCALE INTEGRATED ANALYSIS OF AGROECOSYSTEMS - CHAPTER 1 potx
... of people arriving in the next decades, mainly in the South, will require a major increase in the flow of investments in agriculture.A dramatic increase in investments in farming will not happen ... issue of sustainability in the future Optimizing models either maximize or minimize something within a formal (given and not changing in time) information space When dealing with a feasible trajectory ... about sustainability This book reflects a lot of work and traveling to visit the most interesting groups that are doing innovative things related to this subject in various disciplinary and interdisciplinary...
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channel adaptive technologies and cross layer designs for wireless systems with multiple antennas
... books in a variety of electronic formats Some content that appears in print, however, may not be available in electronic format Library of Congress Cataloging -in- Publication Data: Lau, Vincent ... matched filtering for fading channels with zero ISI transmit pulse Illustration of mutual information Illustration of data processing inequality Preprocessing at the receiver and postprocessing at the ... in UMTS Multiplexing of several transport channels into a single CCTrCh in the physical layer Structure of P-SCH and S-SCH for cell search Multiplexing of DPDCH and DPCCH in downlink and uplink...
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Báo cáo hóa học: " Adaptive selection of antenna grouping and beamforming for MIMO systems" ppt
... of SVD instead of full CSI Feedback information in antenna grouping is a beamforming vector (Nt×1 vector) plus additional antenna grouping information while required feedback information in eigenmode ... grouping and beamforming for MIMO systems EURASIP Journal on Wireless Communications and Networking 2011 2011:154 Endnote a In this article, the beamforming mode refers to the transmit beamforming ... Networking 2011, 2011:154 http://jwcn.eurasipjournals.com/content/2011/1/154 streams through partitioned beamforming In this algorithm, we can improve the BER performance by achieving combining gain...
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Báo cáo hóa học: " Vector perturbation based adaptive distributed precoding scheme with limited feedback for CoMP systems" docx
... U Madhow, G Barriac, Scalable feedback control for distributed beamforming in sensor networks, in Proceedings of the International Symposium on Information Theory (ISIT 2005), 2005, pp 137–141 ... Feedback information Feedback bits MBSFN One PMI for K BSs C WLP One PMI for each BSs One phase facor for coordinated BSs C + (C + 1) × (K - 1) ADP One PMI for serving BSs One adjustment factor for ... Transmit Beamforming Using Feedback Control IEEE Trans Inform Theory 56, 411–426 (2010) W Tushar, DB Smith, Distributed transmit beamforming based on a 3-bit feedback system, in Proceedings of the...
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Báo cáo hóa học: " Research Article Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems" pdf
... preprocessing technique for reducing hardware costs has also been introduced in [20], but without grouping antenna elements into subarrays Initially, antenna subarray formation was introduced ... efficient algorithm for determining the transformation matrix A for all the aforementioned schemes will be presented in detail in Section Figure presents the receiver architecture for each of the ... is actually formed by choosing a subset of antenna elements, the responses of which are linearly combined and fed to an RF chain Thus, generalized selection combining (i.e., combining the responses...
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Báo cáo hóa học: " Research Article Channel Impulse Response Length and Noise Variance Estimation for OFDM Systems with Adaptive Guard Interval" docx
... required for signaling the CIR length information from the receiver to the transmitter However, for network working in time-division duplex (TDD) mode, the estimated CIR length for the downlink channel ... must be, to obtain a precise CIR length This question is solved in the following: observing the case (a) in Figure 5, and taking two special points of f (L) with L = [L f ,min , NP ] into account, ... technique, which combines CIR length information with the noise variance estimation 6.3 NLCE performance in dependence on the parameter selection In the following, we consider a system having an SNR of...
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Báo cáo hóa học: " A Reconfigurable Spiral Antenna for Adaptive MIMO Systems" docx
... gain Measured gain Figure 8: Frequency responses of axial ratio and gain in the zdirection for RHCP spiral antenna initial design and fabrication that will pave the way for novel antennas into ... technology for beyond the year 2000 He also led a research/development team in transferring semiconductor chip technology to manufacturing in IBM In 1988, he joined the University of California (UCI), ... B.S degree in optoelectronics and an M.S degree in optics from the University of Science and Technology of China, in 1994 and 1997, respectively, and a Ph.D degree in electrical engineering and...
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Báo cáo y học: "Networked Research buffering: a basic mechanism for distributed robustness in complex adaptive systems" pptx
... species will forage for distinct resources [75] Degeneracy has become increasingly appreciated for its role in trait stability, as was noted in [72] and more thoroughly discussed in [23] For instance, ... maintaining system traits, i.e system responses become more distributed while remaining phenotypically cryptic In measuring the magnitude S of state changes for individual gene products, we find ... restrictions in what types of functions can be co-expressed in a single gene or represented in a single protein.iii The environment is defined by the ligands available for complex formation Each protein...
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agent-based model selection framework for complex adaptive systems
... Marco A Janssen, for support and guidance, and first of all for introducing me to research communities that integrate computing with other disciplines, such as decision making, learning, language ... Generating and candidate classes are in rows and columns, respectively, in the following order: random, ignorant, uninformed and informed 96 xvi 5.2 Confusion matrices, using the ... criterion, for two error functions and two suitability conditions Generating and candidate classes are in rows and columns, respectively, in the following order: random, ignorant, uninformed and informed...
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Dynamic scheduling techniques for adaptive applications on real time embedded systems
... transmission whose performance heavily relies on routing and switching mechanisms for packet relay Existing routing algorithms include XY routing [87], odd-even turn-model adaptive routing [88], DyAD ... platforms makes adaptive applications an interesting value proposition Applying dynamic scheduling for such applications will bring further flexibility for meeting the overall system’s performance ... scheduling performance by taking care of slack losses due to inter-processor communications is reported Finally, to make our work self-contained, we develop a static scheduling algorithm targeting inter-processor...
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Design of adaptive and hybrid energy QOS aware heterogeneous multiprocessor scheduling strategies for embedded systems
... deadline and precedence constraints by any multiprocessor scheduling algorithm Global-shifting is performed on this initial schedule followed by local-transformation to induce battery-awareness into ... to be built into the sensor node leading to an increase in cost, size and complexity of the sensor node Also the performance (in terms of maximum operating clock frequency) of the sensor node ... the following four combinations: SSSS (Single Source Single Sink) SSMS (Single Source Multiple Sink) MSSS (Multiple Source Single Sink) MSMS (Multiple Source Multiple Sink) We will now proceed...
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A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems
... efficient implementation by using the fast Fourier Transform (FFT) and the inverse Fast Fourier Transform (IFFT), mitigration of inter-symbol interference (ISI) by inserting cyclic prefix (CP) and ... low convergence speed since they often need a large amount of receiving data to obtain some statistical information such as cyclostationarity induced by the cyclic prefix Blind channel estimation ... the challenging topic in the OFDM system Channel state information can be used for the detection of the received signal, improving the capacity of the system throughput by adjusting the modulation...
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Free Software tools for embedded systems
... http://www.kernel.org/pub/linux/libs/klibc/ “Kernel C library” Tiny and minimalistic C library designed for use in an initramfs at boot time (alternative to initrds) Fine for the creation of simple shell scripts ... Crosscompiling toolchains Summary Building a toolchain by yourself Tough and very long to master Readytouse toolchains Available from several locations for most platforms Tools to build toolchains: Buildroot and Crosstool ... Code Sourcery (supports GNU/Linux, EABI and uClinux): http://www.codesourcery.com/gnu_toolchains/arm/ Also available for Windows workstations MIPS http://www.linuxmips.org/wiki/Toolchains (useful links) Free Software tools for embedded systems...
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techniques for adaptive control - vance vandoren
... Systems Putting it all together: combining intelligent technologies for process control Results: using intelligent control in the mineral-processing industry Conclusion References ... techniques for extending the effectiveness of PID loops in more challenging applications such as gain scheduling for setpointdependent processes and the Smith predictor for deadtime-dominant processes ... controller includes a relative-gain-on-setpoint to allow tuning for both unmeasured-load rejection and nonovershooting setpoint response Also, the controller may include a deadtime function in its integral...
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Tài liệu C Programming for Embedded Systems docx
... will check for interrupts before performing the next instruction fetch As long as the controller detects a pending interrupt, it will service the interrupt before fetching the next instruction ... generate interrupts upon timeout A serious facet of an interrupt-based solution is the protocol for communication between the interrupts and main-line code Since interrupts and main line are as independent ... Executing Interrupt Handlers To minimize the possibility of an interrupt routine being itself interrupted, the microcontroller will disable interrupts while executing an interrupt handler Masking interrupts...
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Which Sound Is Different?
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